I just tried to ignore a plugin update globally and the popup modal shows EXAMPLE text instead of the real data.
I think that the check for site_name !== undefined is incorrect in line 2697 and should be ==: https://plugins.trac.wordpress.org/browser/mainwp/tags/5.3.1/assets/js/mainwp-updates.js#L2697
When I make that change, it’s working correctly.
